Brought this for my 10 years old daughter because she had more books and school supplies when she entered the 4th grade. The wheels made it easier for her to move the backpack around. It was just getting too heavy for her to carry her old backpack, which did not have wheels. Her school buildings are all one story; no stairs. Saw some of her classmates with this backpack and I checked it out. I liked it and ordered it. It works for my daughter. If you want maxium carrying space in the large section of the backpack, get the one without the laptop sleeve. The sleeve takes away storage space.